cleanup(pycross): remove the partially migrated code (#2906)

The migration effort has stalled and we closed the initiative.

#1360

Author: aignas

MODULE.bazel

@@ -102,7 +102,6 @@ use_repo(
     internal_dev_deps,
     "buildkite_config",
     "rules_python_runtime_env_tc_info",
-    "wheel_for_testing",
 )
 
 # Add gazelle plugin so that we can run the gazelle example as an e2e integration

WORKSPACE

@@ -78,7 +78,7 @@ python_register_multi_toolchains(
     python_versions = PYTHON_VERSIONS,
 )
 
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive", "http_file")
+load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
 # Used for Bazel CI
 http_archive(
@@ -155,14 +155,3 @@ pip_parse(
 load("@dev_pip//:requirements.bzl", docs_install_deps = "install_deps")
 
 docs_install_deps()
-
-# This wheel is purely here to validate the wheel extraction code. It's not
-# intended for anything else.
-http_file(
-    name = "wheel_for_testing",
-    downloaded_file_path = "numpy-1.25.2-cp311-cp311-manylinux_2_17_aarch64.manylinux2014_aarch64.whl",
-    sha256 = "0d60fbae8e0019865fc4784745814cff1c421df5afee233db6d88ab4f14655a2",
-    urls = [
-        "https://files.pythonhosted.org/packages/50/67/3e966d99a07d60a21a21d7ec016e9e4c2642a86fea251ec68677daf71d4d/numpy-1.25.2-cp311-cp311-manylinux_2_17_aarch64.manylinux2014_aarch64.whl",
-    ],
-)

python/private/internal_dev_deps.bzl

@@ -14,23 +14,11 @@
 """Module extension for internal dev_dependency=True setup."""
 
 load("@bazel_ci_rules//:rbe_repo.bzl", "rbe_preconfig")
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_file")
 load(":runtime_env_repo.bzl", "runtime_env_repo")
 
 def _internal_dev_deps_impl(mctx):
     _ = mctx  # @unused
 
-    # This wheel is purely here to validate the wheel extraction code. It's not
-    # intended for anything else.
-    http_file(
-        name = "wheel_for_testing",
-        downloaded_file_path = "numpy-1.25.2-cp311-cp311-manylinux_2_17_aarch64.manylinux2014_aarch64.whl",
-        sha256 = "0d60fbae8e0019865fc4784745814cff1c421df5afee233db6d88ab4f14655a2",
-        urls = [
-            "https://files.pythonhosted.org/packages/50/67/3e966d99a07d60a21a21d7ec016e9e4c2642a86fea251ec68677daf71d4d/numpy-1.25.2-cp311-cp311-manylinux_2_17_aarch64.manylinux2014_aarch64.whl",
-        ],
-    )
-
     # Creates a default toolchain config for RBE.
     # Use this as is if you are using the rbe_ubuntu16_04 container,
     # otherwise refer to RBE docs.